I’m a avid cyclist. I race mountian, gravel, and cyclocross. Great hobby that is so much fun and very good for you. I think its better to raise kids watching me be active as apposed to them standing in middle of soccer field seeing me stand on sidelines.
Start with mountian biking. You...
Paleo diet(basically the perimeter of the grocery stores, veggies, meat, fruit ext)
Mountain biking 3-4 times a week for a hour
7-8 hours sleep a night